It would be great. As well as other settings. Before you can change settings without repainting the TreeView.

In other version it is possible to make so that the badge of the image of the developed knot didn't change so far the knot won't be curtailed?

That's the right Syntax and should work.

Yes, everything works. Me being confused by the fact that the value of the variable is not changed. On the idea of the value of the variable must also change. If you subsequently reference variables, the evidence will not be correct.